The word "comingle" means to mix, blend, or unite together. Its antonyms, or opposite in meaning, are segregate, separate, isolate, and divide. Segregate refers to keeping things apart or separating them based on certain characteristics. Separate means to divide or set apart from one another. Isolate means to put away or keep apart from others. Divide means to separate into parts. The antonyms of comingle suggest a sense of keeping things apart and not mixing them together, which can be useful in certain contexts such as sorting or categorizing different items.